Mari Shiraishi is a Japanese voice actress known for her anime and video game work during the 2010s. She was born on August 24 in Hokkaido, Japan. Her career began in 2013 with minor roles, including a tea ceremony club member in the series Golden Time and student roles in Futari wa Milky Holmes.

In 2014, Shiraishi took on several supporting roles that brought her wider recognition. She voiced Mai in the series Witch Craft Works and played Kyōko Izumi in Magimoji Rurumo. That same year, she also contributed to the WIXOSS franchise with a voice role for a broadcast announcement. In 2015, she voiced the character Wenerana Gremory in High School D×D BorN. Her later anime credits include roles in Taboo Tattoo and a return to the WIXOSS series for Lostorage incited WIXOSS in 2016. Her final anime role listed is from 2016.

Beyond television animation, Shiraishi voiced characters in several video games. Her game credits include Zukiya in Metal Max 4: Moonlight Diva and the Shogun in Seisou no Amazones, both released in 2013. She also performed roles in Medarot Girls Mission as Nishikino Koi, Oedo Blacksmith as Risa, and the mobile game Yōkai Hyakki as Suzuka Gozen. Her work extended to other media including drama CDs, commercials, and instructional videos.

Shiraishi originally began her career with the talent agency YU-RIN PRO. She left the agency in September 2015 to work as a freelancer. According to encyclopedia sources, Mari Shiraishi has retired from the voice acting industry. Subsequent to her departure from agency work, the role of Wenerana Gremory was recast to another voice actress.